Answer:
Theocratic
Step-by-step explanation:
First of all, remember that Mesopotamia was a territory that over time had a number of distinct civilizations, each with its own system of administration. However, in a broader sense, Mesopotamian civilizations were characterized by a theocratic monarchy, in which a king had dynastic rights and the priests held positions of authority while keeping to themselves.
Due to the rich river valley between the Tigris and Euphrates Rivers, which made Mesopotamia a continual danger from potential outside invaders, the kingdoms of the Sumerians, Akkadians, Babylonians, etc. tended to be military. The populace practiced polytheism, or the worship of several gods. The priests persuaded the populace that the gods were turbulent and volatile, as evidenced by the ongoing conflict, unexpected floods, and sporadic natural calamities. By giving each of the numerous gods distinctive characteristics as well as "human" features and motivations, the gods instead of the monarch may be held accountable for undesirable consequences. Additionally, they could be "appeased" by making sacrifices.
Thank you,
Eddie